<html>
  <head>
    <script src="textinput_helper.js"></script>
    <script>
      window.onload = function() {
        var ele = document.getElementById('text_id');
        ele.onfocus = function(e) {
          document.getElementById('password_id').focus();
        };
      };
    </script>
  </head>
  <body>
  <input type="text" id="text_id">
  <input type="password" id="password_id">
  </body>
</html>
